A Theoretical Model of Non-Steady State Tire Cornering Properties and its Experimental Validation

Paper #:
  • 973192

Published:
  • 1997-11-17
Citation:
Guo, K. and Liu, Q., "A Theoretical Model of Non-Steady State Tire Cornering Properties and its Experimental Validation," SAE Technical Paper 973192, 1997, https://doi.org/10.4271/973192.
Pages:
12
Abstract:
Based on the tire cornering properties in steady state condition, a theoretical model of non-steady state tire cornering properties (NSSTCP) with small lateral inputs is presented. The outputs of the model are lateral force and aligning moment, while the inputs are yaw angle and lateral displacement (or turn slip and slip angle). The deformation characteristics of contact patch are analyzed in non-steady state condition. The flexibility of tread and that of carcass are both taken into account. The deformation of carcass is assumed to compose of translating part, bending part and twisting part. The tests of NSSTCP including pure yaw motion and pure lateral motion are realized with step inputs of yaw angle and slip angle respectively and test data is then transformed into frequency domain. The model is validated through comparing the computational results with test frequency response.
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